求助！prep 2012 cr 62题

泡沫HX

In 1992 outlaw fishing boats began illegally harvesting lobsters from the territorial waters of the country of Belukia. Soon after, the annual tonnage of lobster legally harvested in Belukian waters began declining; in 1996, despite there being no reduction in the level of legal lobster fishing activity, the local catch was 9,000 tons below pre-1992 levels. It is therefore highly likely that the outlaw fishing boats harvested about 9,000 tons of lobster illegally that year.

Which of the following is an assumption on which the argument depends?
A. The illegal lobster harvesting was not so extensive that the population of catchable lobsters in Belukia’s territorial waters had sharply declined by 1996.

B. The average annual lobster catch, in tons, of an outlaw fishing boat has increased since 1992.

C. Outlaw fishing boats do not, as a group, harvest more lobsters than do licensed lobster-fishing boats.

D. The annual legal lobster harvest in Belukia in 1996 was not significantly less than 9,000 tons.

E. A significant proportion of Belukia‘s operators of licensed lobster-fishing boats went out of business between 1992 and 1996.

正确答案为A，lz逻辑好差，真的不明白题中的逻辑，求大牛解答~~




A. The illegal lobster harvesting was not so extensive that the population of catchable lobsters in Belukia’s territorial waters had sharply declined by 1996.

B. The average annual lobster catch, in tons, of an outlaw fishing boat has increased since 1992.

C. Outlaw fishing boats do not, as a group, harvest more lobsters than do licensed lobster-fishing boats.

D. The annual legal lobster harvest in Belukia in 1996 was not significantly less than 9,000 tons.

E. A significant proportion of Belukia‘s operators of licensed lobster-fishing boats went out of business between 1992 and 1996.

正确答案为A，lz逻辑好差，真的不明白题中的逻辑，求大牛解答~~

泡沫HX

不知为何，选项出现了两遍，大家自动忽略一遍吧~

miamiadi333

lz 这道题你只要抓住原文大致意思，用有关无关可以解决。
很多题我觉得原文看起来越难，答案选项就越简单。很多并不太需要分析逻辑链（当然能分析出来更好），靠有关无关，方向一致还是相反就可以解决。
原文：1992年，开始出现不合法的捕龙虾的船，之后，合法的捕龙虾的船的产量就开始减少。1996年，合法的捕获龙虾的产量少了9000吨，结论，因此，这9000吨的产量都被不合法得船捕走了。
题目是找假设。其实我觉得这个原文有很多gap.答案只要抓住一个就好了。（gap 合法捕获减少的量和减少的都是被非法捕获了）
a 1996年非法捕获的船的活动并没有怎么减少（正确，如果非法捕获的船活动减少(答案取非)，那么结论被weaken）
b 1992年不合法的捕获量开始增加。（无关，题目问的是1996年的事情）
c 非法的捕获量并不比合法的多（无关的比较。谁多谁少无所谓）
d 1996年合法的的捕获量不少于9000吨（无关，合法的捕获了多少与结论无关）
e 大部分合法的船在1992年到1996年都不干活（无关，他们不干活不能说明龙虾都被非法的抓走了，并且他们在1992 年到1996年本来就不干活，对合法的和非法的无影响）

ielaine0828

嗯~ o(*￣▽￣*)o
这是典型的数量增减对比型的题目
逻辑链：92年出现非法捕虾船----＞合法捕到的龙虾数量减少
            96年合法少捕到9000吨龙虾----＞这9000吨都是非法捕获的

那么提干得到结论既有假设是：出现的非法捕获是导致96年合法捕虾数量减少的唯一原因
可是注意拿92年和96年对比的前提必须是：能够捕到的虾的数量是一样的。也就是所谓基础相同才能进行比较。

A说 非法捕虾并没有猖狂到让1996年B水域地虾的数量大幅减少

那想一下。92年这边的虾都被捕当的差不多的话。96年不管有没有非法捕虾，总的虾的数量都会减少啊。于是A取非削弱成立。

如果依旧不理解可以参考一下下面这个例子：


Last year, our apple pickers picked 5000 kg of apples. After the harvest, we laid off the man who used to keep most of the kids out of the apple orchard, kids who would steal ripe apples right off the trees to sell them to street vendors. If this year, our apple pickers have picked 4000 kg of apples, can we conclude that kids have stolen 1000 kg of apples off our trees this year?

泡沫HX

谢谢～

timegreen

ielaine0828 发表于 2013-1-27 09:06
嗯~ o(*￣▽￣*)o 这是典型的数量增减对比型的题目逻辑链：92年出现非法捕虾船----＞合法捕到的龙虾数量减 ...

谢谢 讲解的精彩至极 我怎么就没有你如此清晰地思路呢？
请问你是在两分钟之内做对这题的吗？

烟声

所以要是没读懂题，就彻底悲剧了

cutey3

ielaine0828 发表于 2013-1-27 09:06
嗯~ o(*￣▽￣*)o 这是典型的数量增减对比型的题目逻辑链：92年出现非法捕虾船----＞合法捕到的龙虾数量减 ...

非常清晰,谢谢.

读题确实是关键.

qinage

ielaine0828 发表于 2013-1-27 09:06
嗯~ o(*￣▽￣*)o 这是典型的数量增减对比型的题目逻辑链：92年出现非法捕虾船----＞合法捕到的龙虾数量减 ...

说得太好了